Self-oiling axle-box.



e. 0. BENJAMIN. SELF OILING AXLE BOX. APPLIOATION FILLED DBO. 19, 1907.

- Patented Sept 29,1908.

GEORGE G. BENJAMIN, OF BARBIE, VERMONT.

SELF-OILING AXLE-BOX.

Application filed December 19; 1907. Serial No. $07,176.

To all whom it may concern:

Be it known that I, GEORGE C. BENJAMIN, a citizen of the UnitedStates,residing at Barre, in the county of \(Vashington and State of Vermont,have invented new and useful Improvements in Self-Oiling Axle- B oxes-,of which the following is a specification.

This invention relates to sell oiling de-' vices for vehicle axles, andthe object of the invention is toprovide a. device constructed upon theordinary axle box of a vehicle hub whereby a continuous feed oflubricant is imparted to the axle upon its revolutions.

To these ends the invention resides in the novel construction of axleboxes provided with a lubricant containing chamber and applicable to thevehicle hubs of ordinary construction.

In the drawings, Figure l is a longitudinal sectional view of a vehiclehub provided with my improvement, and Fig. 2 is a lon itudinal sectionalview of the same upon the ine 2'2 and looking in the direction of thearrows.

In the accompanying drawings the numeral 1 designates a Vehicle hub ofthe ordinary construction, and rovided with the usual centrallongitudina bore 2 for the reception of the axle box.

The improved axle boxing, forming thev subject matter of the resentapplication, comprises the usual hol ow casting 3, cylindrical in crossse'ction andadapted for the reception of the vehicle axle 4.- The boxing3 is provided upon its lower ends with'a V- shaped flan e 5, adapted tosecure it from rotation within the hub 1, and upon its upperi'ace'withthe longitudinally extending oil chamber 6. This o l chamber 6 ispreferably of a lesser length then the main body of the axle box 3 andis preferably provided upon eah of its ends with suitable screw threadsadapted for the reception'o'f threaded plugs 7, by which thechannel iseifeetively closed, and the lower wall of the chamber providedby theaxle box 3 is provided with a I series of perforations 8, by which thelubri- Speeification of Letters Patent.

parted to the axle 4.

Patented Sept. 29, 1908.

cant contained within the chamber is imabove the chamber 6 is providedwith a bore ,01' passage 9 adapted for the reception of a cylinder 10threadedly engaged with the chamber as at 11 and having its upper endThe hub 1 directly threaded for the reception of a closing plug 12. Withthis construct-ion it will be seen that lubricant being fed through thecylinder 10 into the chamber 6 is retained in said 3 chamber andimparted to the axle 4through the perforations 8 upon the revolution ofthe wheel. By this construction it will be noted that the lubricant isretained within the v chamber 6 until the wheel revolves, and that thelubricant within the chamber is entirely protected from dust or dirt bythe plugs arranged upon the chamber and in the entrance channel to thecl1amber.

Having thus fully described the invention what is claimed as new is:

The combination with-an axle hub having a central bore runninglongitudinally of the hub and having a passage communicating with thebore and a depressioi'ralso cornmunil eating with the bore, and beingprovided with a vertical opening communicating with the bore, of an axleboxin having a chamber formed thereon and an en argement u on its facedirectly opposite the chamber, t e axle boxing adapted to be receivedwithin the bore of thohub', the chamber being ,l ioned within thepassage of the hub an the enlargement occupying the depression of thehub, closures for each end of the chamber, the lower wall of the chamberprovided with openings communicatin with the hub, a cylinder within thevertica o ening of the hub and communicating with t e chamber, andaclosure'for the cylinder.

In testimony whereof I afiix my signature in presence of two witnesses.

GEORGE C. BENJAMIN.

Witnesses: Bnn'r SMITH, BENJAMIN Guns.

